Flora of North America species comparison

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Calochortus umpquaensis

Calochortus tolmiei
Calochortus umpquaensis

Umpqua mariposa-lily
Calochortus tolmiei

hairy star tulip, pussy ears, Tolmie star-tulip, Tolmie's cat's ear, Tolmie's mariposa-lily
Stems

not branching, straight, often scapelike, 2–3 dm, glabrous or glaucous.

± slender, usually branching, 1–4 dm.
Leaves

basal solitary, clasping;

blade narrowly lanceolate, hairy, adaxially hispid, abaxially glabrous, sometimes glaucous. Inflorescences 1–several-flowered;

bracts 2, suboppo-site, narrowly lanceolate.

basal persistent, 1–4 dm;

blade lanceolate, tapering at base, flat;

cauline bractlike.
Inflorescences

± umbellate, 1–several-flowered.
Flowers

erect;

perianth open, campanulate;

sepals lanceolate-acuminate, ca. 2 cm;

petals white to cream, with dark purple-black, pentagonal to lunate blotch, broadly oblong to obovate, 3.5 cm, bearded, adaxial surface typically minutely papillose, margins erose;

glands transversely oblong-lunate, slightly depressed, with 0.7–1.4 mm-wide band of short dendritic hairs distally, hairs surrounded by lime-green coloration and purple striations;

anthers lanceolate, apex acuminate.

erect or spreading;

perianth open, campanulate;

sepals 10–15 mm;

petals white to pinkish or purplish, obovate, 12–25 mm, adaxial surface densely hairy, margins ciliate;

glands bordered proximally by ciliate membrane, distally by short hairs;

anthers lanceolate, apex acute to apiculate.
Capsules

nodding, 3–5.4 cm.

nodding, winged, oblong, 2–3 cm.
Seeds

2.8–3.5 mm, with inflated bulbous crest and hollow lateral ridge.

deep purple, dark brown in age, irregular.
2n

= 20.

= 20.

Calochortus umpquaensis

Calochortus tolmiei
Phenology Flowering late spring–mid summer. Flowering mid spring–mid summer.
Habitat Grassland-forest ecotones in serpentine-derived soils Open grassy slopes or in woods, often on poor, dry soil
Elevation 300–500 m (1000–1600 ft) 0–2000 m (0–6600 ft)
Distribution
from FNA
OR
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR; WA
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Calochortus umpquaensis is known only from Watson and Ace Williams mountains on both sides of the Little River, Douglas County.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 26, p. 130. FNA vol. 26, p. 124.
Parent taxa Liliaceae > Calochortus Liliaceae > Calochortus
Sibling taxa
C. albus, C. amabilis, C. ambiguus, C. amoenus, C. apiculatus, C. argillosus, C. aureus, C. bruneaunis, C. catalinae, C. clavatus, C. coeruleus, C. concolor, C. coxii, C. dunnii, C. elegans, C. eurycarpus, C. excavatus, C. flexuosus, C. greenei, C. gunnisonii, C. howellii, C. indecorus, C. invenustus, C. kennedyi, C. leichtlinii, C. longebarbatus, C. luteus, C. lyallii, C. macrocarpus, C. minimus, C. monanthus, C. monophyllus, C. nitidus, C. nudus, C. nuttallii, C. obispoensis, C. palmeri, C. panamintensis, C. persistens, C. plummerae, C. pulchellus, C. raichei, C. simulans, C. splendens, C. striatus, C. subalpinus, C. superbus, C. tiburonensis, C. tolmiei, C. umbellatus, C. uniflorus, C. venustus, C. vestae, C. weedii, C. westonii
C. albus, C. amabilis, C. ambiguus, C. amoenus, C. apiculatus, C. argillosus, C. aureus, C. bruneaunis, C. catalinae, C. clavatus, C. coeruleus, C. concolor, C. coxii, C. dunnii, C. elegans, C. eurycarpus, C. excavatus, C. flexuosus, C. greenei, C. gunnisonii, C. howellii, C. indecorus, C. invenustus, C. kennedyi, C. leichtlinii, C. longebarbatus, C. luteus, C. lyallii, C. macrocarpus, C. minimus, C. monanthus, C. monophyllus, C. nitidus, C. nudus, C. nuttallii, C. obispoensis, C. palmeri, C. panamintensis, C. persistens, C. plummerae, C. pulchellus, C. raichei, C. simulans, C. splendens, C. striatus, C. subalpinus, C. superbus, C. tiburonensis, C. umbellatus, C. umpquaensis, C. uniflorus, C. venustus, C. vestae, C. weedii, C. westonii
Name authority Fredricks: Syst. Bot. 14: 12, figs. 1, 2, 3f–j, 4, 5. (1989) Hooker & Arnott: Bot. Beechey Voy., 398. (1840)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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